Company is urged to review route guides of search and rescue helicopters.

A report into the R116 helicopter crash off the coast of Mayo
has recommended that the company that runs the Coast Guard service in Ireland
should review route guides in use by search and rescue helicopters.

Four crew members died when Rescue 116 went down last month near Blackrock Island.

The initial report from the Air Accident Investigation unit
is analysing data from the blackbox flight recorder.